Question

A ball swings in a vertical circle at the end of a rope 1.50 m long. When the ball is

36.9° past the lowest point on its way up, its total acceleration is (-22.5i + 20.2j)m/s

. At that instant, (a) sketch a vector diagram showing the components of its

acceleration, (b) determine the magnitude of its radial acceleration, and (c)

determine the speed and velocity of the ball.

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Answer 1

A ball swings in a vertical circle at the end of a rope 1.50 m long. When the ball is 36.9° past the lowest point on its way up, its total acceleration is (−22.5i^+20.2j^)m/s2. At that instant,

(a) sketch a vector diagram showing the components of its acceleration,

(b) determine the magnitude of its radial acceleration, and

(c) determine the speed and velocity of the ball.